Shade roller



Au'gL'ZO, 1929. s. HARTSHORN SHADE ROLLER Filed April 21,- 1928 ATTORNEY.

Patented Aug. 20, 1929.

UNITED STATES PATENT OFFICE.

STEWART HARTSHORN, OF SHORT HILLS, NEW JERSEY, ASSIGNOR TO STEWART HARTSHORN COMPANY, A CORPORATION OF NEW JERSEY.

SHADE ROLLER.

Application. filed April 21, 1928. Serial No. 271,664.

The invention relates to rollers for window shades and the like and more particularly to such rollers of the type known as spring. shade rollers in which a spring is wound by drawing or unrolling the shade from the roller and when released, said spring will rewind the shade upon the roller.

The invention comprehends an improved stopping device which checks the revolution of the roller at any desired point, so that when the curtain or shade attached to the roller is adjusted to the desired position and released, the roller is held in that position; and my improvement consists in a simplified form of check which possesses mechanical strength, is cheap to manufacture in that it comprises few parts which are simple in construction and may be readily assembled.

Other objects of'the invention are to produce a shade roller which is strong and durable in construction and may be manufactured at small cost of material such as paper tubing and in which the shade may be secured to the roller in proper alinement and with a minimum of effort.

These and further objects will more fully appear in the following description and accompanying drawings.

One embodiment of the invention is illustrated in the accompanying drawings in which like parts in all of the several figures are designated by similar characters of reference, and in which Fig. 1 is a side elevation of a shade roller embodying the invention.

Fig. 2 is a longitudinal section of the same.

Fig. 3 is a perspective view of a spring clip used to clamp the shade fabric around the roller.

Fig. 1 is a cross sectional view on the line 1* X of Fig. 1, showing the shade fabric attached to the roller.

Fig. 5 is a view of the shade fabric, showing setting line thereon for the purposehereinafter described.

In carrying out the invention a solid tubular paper roller 1 is provided. The periphery of the roller is scored, or otherwise marked on its outer surface with a straight, longitudinal line from one end to the other which is indicated in Fig. 1 by the dot and dash line 5. Within the tube there is also secured a plug 6 for supporting the inner end of the rewinding spring shaft and if desired other plugs may be inserted in spaced relation to afford added stiffness to the tube, as will be understood. A wooden plug 8 having the internal diameter'of the paper tube 1 and having an annular enlargement or rim at its outer .end of a diameter equal to the outside diameter of the roller is driven into one end of the latter so that the extension on the wooden plug lies flush with that end of the roller 1. Nails 3 driven through the roller and plug securely hold the plug in place. Projecting from the outer end of the plug is a cylindrical journal pin 9 which is adapted to engage within an opening in the usual supporting bracket (not shown) and by means of which this end of the roller is supported.

The other end of the roller 1 is closed by a tubular wooden plug 10, the latter being held in place by the nails 7 and also provided with an outer circular extension flush with that end of the roller. The outer end of the plug 10 is formed with a circular depression to the inner surface of which are pivoted the usual pawls or dogs 1010 for normally preventing rotation of the roller, as a whole, in one direction. The plug 10 is provided with a central opening in which the roller 1 may freely revolveon the tubular metal spindle 12, the inner end of which is also journaled in a recess in the plug 6. The outer end of said spindle extends slightly beyond the wooden plug 10 and is formed with two alined slots for providing the usual sockets adapted to be engaged by the dogs, as is common.

The spindle 12 carries an annular collar 13 the outer face of which is adjacent the inner end of the plug 10. Resting against this collar is a disc 13*, in which the shaft is journaled, having a rim 13 fitting the inner end of the plug. wardly extending pins, formed by striking up portions of the metal which are driven into the inner end of the plug and obviate the use of tacks or brads for securing these parts. Also struck up from the disc and extending inwardly are perforated earsfor receiving a convolution of the rewinding spring, which is secured at its inner end tothe spindle 12, and at the opposite end to the disc 13". The

inner end of the spindle 12 is loosely carried The disc also carries outing the winding key for the spring 12 which engages in and is held stationary by the well known slotted bracket (not shown).

The spear is preferably formed from a flat piece having two oppositely disposed slots 16 provided on its opposite edges and it is fitted within the bore of the spindle 12 in such position that these slots are in alinement with the ratchet slots formed on the project-- ing end of the spindle 12. In this way sufficiently deep depressions are provided for the engagement of the pawls or dogs. The spear 15 is securely held in the spindle 12 by a driving fit.

For the positioning of the shade on the roller, the nails 21, 22, and 23 and the spring metal clips 25, 26 and 27 are utilized to provide simple, quick and eficient means for the proper alinement of the shade and securing it to the roller.

In the process of manufacture of the roller the nails 21, 22 and 23 are driven into the roller in apertures drilled at such points along the line that they will engage the wooden blocks 8, 6 andwhich provide a sufliciently tight set for the nails. The latter project from their respective apertures so that the lower sides of their heads are a certain distance away from the roller so as to permit them to be easily removed at the time of assembly of the shade on the roller, there being however, sufiicient friction to prevent their being accidentally dislodged.

In assembling the shade on the roller, the nails 21, 22 and 23 may be removed and if desired a line 30 may be marked parallel to the upper end of the shade fabric at a dis tance therefrom or apertures may be previously punched on the fabric along the line indicated by 30. The shade is then positioned on the roller so that the line 30 thereon COlllClQeS with the line. 5 on the-roller, the nails 21, 22 and 23 being then inserted through the cloth into their respective openings on the line 5 or the apertures in the fabric may be forced over the heads of the nails. The latter need not be driven in but merely pressed into position, by any convenient instrument.

The fabric being thus attached a sufficient amount extends beyond the line 5 to allow it to bewrapped around the roller as shown in Fig. 4. V

The clips 25, 26 and 27, as shown in 3 are formed of spring metal and normally are of smaller curvature than that of the roller and serve to securely clamp the end portion of .the shade in place on the roller. These clips Vith the arrangement of parts described, it is noted that simple means are provided to secure the shade in place on the roller, and in this respect the wooden blocks 8, 6 and 10 which are necessary for proper alinement of the locking device and of the roller within the brackets, are at the same time made use of for securing the shade on the roller. It is desired, however, to have it understood that the number of spring clips is not limited, but additional clips may be used without the co operating blocks by simply driving in additional nails through the fabric and the tubular roller 1 alone. Also additional blocks other than the three described, may be fitted within the roller 1 at various points thereof, to successfully cooperate with additional clips and nails.

In the arrangement of parts described I have provided a simplified form of roller actuating mechanism which comprehends a locking device comprising the single tubular rod 12 which acts both as a spindle and a spring attachment and the special forming of the spear or key 15; it is readily seen that the number of parts is reduced to a minimum and their assembly greatly facilitated. The looking mechanism is also effective and strong. It will also be noted that the improvements in construction are such that the locking mechanism is adaptable to other forms of shade rollers, without requiring special forms of supporting brackets.

In accordance with the provisions of the patent statutes the principle of the invention has been described, together with the apparatus which is now considered to represent the best embodiment thereof, but it is desired to have it understood that the apparatus shown is merely illustrative, and that the invention may be carried out in other ways.

What is claimed as new and desired to be secured by Letters Patent, is as follows:

1. In a curtain roller, the combination with a tubular shell, a wooden plug fitted in one end thereof provided with a longitudinal perforation and having a circular recess in its outer end, and locking pawls in said recess, of a tubular spindle within the roller having its outer end extending outwardly beyond the plug and provided with two oppositely disposed slots, a flat spear secured within said end of the tube by a driving fit between its edges andthe inner wall of the tube and having its outer flat end portion extending beyond the end of the roller, a shoulder on the spindle engaging the inner end of the plug, and a rewinding spring attached to the spindle and the plug.

2. In a shade roller, the combination with a tubular shell, a plug fitted into one end of the roller having a longitudinal aperture and a surrounding recess of larger diameter at its inner end, pawls attached-to the outer end of the plug, a tubular'spindle. within the roller having its outer end projecting beyond the one end to the inner end of the spindle and at outer end of the plug and provided With 3. its other end to said boss, a spear having an slot, and a sleeve on the spindle forming both overall transverse dimension forming a driva shoulder engaging the bottom of the recess ing fit with the bore of the spindle and thus 15 5 in the plug and an enlarged bearing adjacent secured therein, and having a notch in alinethereto, of a cup shaped cap piece enclosing ment with the spindle recess for engagement the inner end of the plug having a recess with the pawls, said spear having its outer forming a journal for said sleeve and profiat end portion projecting from the spindle vided at one side with a projection entering for engagement with a bracket. 1 the end of the plug and at the other side With a spring engaging boss, a spring secured at STEWART HARTSHORN. 

